Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Quando foi o Masters Tournament?
 ###Tabelas: CREATE TABLE club_world_cup_finalists_by_nation (club_world_cup_finalists_by_nation_id AUTO_INCREMENT PRIMARY KEY, Nation VARCHAR, Finalists INT, Winners INT, Runners-up INT, % won INT, Years won VARCHAR) CREATE TABLE back-to-back_night_pre-season_winners (back-to-back_night_pre-season_winners_id AUTO_INCREMENT PRIMARY KEY, Season INT, Premier VARCHAR, Runner Up VARCHAR, Score VARCHAR, Venue VARCHAR, Attendance INT, Margin INT) CREATE TABLE european_tour_wins_9 (european_tour_wins_9_id AUTO_INCREMENT PRIMARY KEY, Date VARCHAR, Tournament VARCHAR, Winning score VARCHAR, To par VARCHAR, Margin of victory VARCHAR, Runner(s)-up VARCHAR) CREATE TABLE bachelorettes (bachelorettes_id AUTO_INCREMENT PRIMARY KEY, Season INT, Premiered VARCHAR, Bachelorette VARCHAR, Profile VARCHAR, Winner VARCHAR, Runner(s)-Up VARCHAR, Proposal VARCHAR) CREATE TABLE most_career_games (most_career_games_id AUTO_INCREMENT PRIMARY KEY, Rank INT, Games INT, Player VARCHAR, Club/Clubs VARCHAR, Career span VARCHAR)  
SELECT Date FROM european_tour_wins_9 WHERE Tournament = masters tournament